HMC424ALH5
v00.0416
0.5dB LSB GaAs MMIC 6-BIT DIGITAL
ATTENUATOR, DC - 13 GHz
Typical Applications
Features
The HMC424ALH5 is ideal for:
• Telecom Infrastructure
• Military Radio, Radar & ECM
• Space Systems
0.5 dB LSB Steps to 31.5 dB
Single Control Line Per Bit
0.3 dB Typical Bit Error
Hermetic SMT Package, 25mm2
Screening to MIL-PRF-38535 (Class B or S) Available
• Test Instrumentation
Functional Diagram
General Description
The HMC424ALH5 is a broadband 6-bit GaAs MMIC
digital attenuator housed in a hermetic SMT leadless
package. Covering DC to 13 GHz, the insertion loss is
less than 3.5 dB typical. The attenuator bit values are
0.5 (LSB), 1, 2, 4, 8, and 16 dB for a total attenuation
of 31.5 dB. Attenuation accuracy is excellent at 0.5
dB typical step error with an IIP3 of +34 dBm. Six
control voltage inputs, toggled between 0 and -5V,
are used to select each attenuation state. A single
Vee bias of -5V allows operation at frequencies down
to DC. The HMC424ALH5 is compatible with stan-
dard and lead free surface mount manufacturing
techniques and is suitable for high reliability military,
industrial and space applications.
Electrical Specifications, TA = +25° C, With Vee = -5V & VCTL= 0/-5V
Parameter
Frequency (GHz)
Min.
Typ.
Max.
Units
DC - 4 GHz
4.0 - 8.0 GHz
8.0 - 12.0 GHz
2.7
3.3
4.2
4.7
3.2
3.8
4.7
5.2
dB
dB
dB
Insertion Loss
12.0GHz - 13.0 GHz
Attenuation Range
DC - 13.0 GHz
DC - 13.0 GHz
31.5
12
dB
dB
Return Loss (RF1 & RF2, All Atten. States)
Attenuation Accuracy: (Referenced to Insertion Loss)
0.5 - 16.5 dB States
17 - 31.5 dB States
DC - 13.0 GHz
DC - 13.0 GHz
0.4 + 4ꢀ of Atten. Setting Max
0.5 + 5ꢀ of Atten. Setting Max
dB
dB
Input Power for 0.1 dB Compression
1.0 - 13.0 GHz
1.0 - 13.0 GHz
DC - 13.0 GHz
27
dBm
Input Third Order Intercept Point
(Two-Tone Input Power= 0 dBm Each Tone)
REF State
All Other States
40
34
dBm
dBm
Switching Characteristics
tRISE, tFALL (10/90ꢀ RF)
tON/tOFF (50ꢀ CTL to 10/90ꢀ RF)
30
55
ns
ns
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
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